>I have 1 parent form call 1 child form by using :
>

>
>        Context.Items["pplId"] = DetailsView1.SelectedValue.ToString();
>        Server.Transfer("cusAdd.aspx");
>
>

>
>
>In Child Form (cusAdd.aspx), have an ObjectDataSource.
>
>How to configure the ObjectDataSource SelectParameters Source from context.items["pplId"]?
>
>

> <asp:ObjectDataSource ID="odsCusById" runat="server" 
>        SelectMethod="GetPplById" TypeName="pplBLL"
>        <SelectParameters>
>            <asp:QueryStringParameter DefaultValue="0" Name="id" ...... <------------------------------------??????????????
>        </SelectParameters>
>
>

>

Maybe (conditionally) replace the parameter in the Page.Load?

            odsCusById.SelectParameters.Remove(odsCusById.SelectParameters["Id"]);
            odsCusById.SelectParameters.Add(new Parameter("Id",System.Data.DbType.String,
                HttpContext.Current.Items["pplId"].ToString()));

(Untested)